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Discharge Modelling Studies in the Barents Sea

BMT Cordah was contracted by TOTAL (Paris) to undertake cooling water discharge modelling studies on behalf of Shtokman Development AG.

BMT was contracted by TOTAL (Paris) to undertake cooling water discharge modelling studies on behalf of Shtokman Development AG.

The objective was to analyse whether the predicted discharges would be in accordance with Russian Federation and International regulations for discharges in the Barents Sea.

The modelling was undertaken together with REA–Consulting Co. Ltd (REA-Consulting), Vladivostok (Russia Federation), for a proposed Floating Production Unit (FPU); being developed as part of the Shtokman gas condensate field in the central part of the Barents Sea (650 km northeast of Murmansk).

The aim was to assess whether the systems would adhere to Russian Federation maximum permissible concentrations of pollutants and World Bank guidelines on the allowable increase in seawater temperature resulting from cooling water discharge.

The modelling was divided into two studies, with each scenario simulated for summer/winter conditions and for different current speeds:

Discharge of treated produced water

Discharge of chlorinated cooling water

Simulations were carried out using two models, both developed by REA–Consulting.

A two-dimensional dispersion model based on current recommended procedures (set by the Russian authorities for assessing whether a treatment system will meet set discharge limits).

A three dimensional model allowing for a more realistic representation of advective-diffusive processes.

BMT Cordah’s experienced team of consultants provided a comprehensive analysis and assessment of the modelling scenarios and outputs.

This facilitated Shtokman’s assessment of the fate of potential discharges in the Barents Sea and quantified their ability to adhere to Russian Federation permitted discharge limits based on proposed treatment system design parameters